BG44 (oz4333)
About this Plan
BG44. A/2 sailplane model.
Quote: "ENTHUSIASM and originality of design have marked the progress of post-war Yugoslavia's model movement. It was therefore no surprise to those of us acquainted with this movement when Bora Gunic carried off top honours at the 1952 A/2 sailplane contest.
Gunic originally flew the familiar long-straked-fin models that we first saw at Eaton Bray when the Yugoslays came over in 1950, eventually breaking away from this design trend with the B.G.43. This prototype, although the forerunner of the B.G.44. had a much shorter moment arm, consequently using a larger fin and tailplane. Wing section was NACA 6409. The B.G.44. was incidentally only finished one month prior to the Graz contest.
Construction. It should hardly be necessary to say that this is not a beginner's model even though we have taken the liberty of slightly modifying the construction of the fuselage in order to simplify building.
The prototype used full ply formers, presumably jigged for building. These we have divided so that the fuselage can be built by the crutch method.
Commence by building the wings and centre section, and make sure that the two root ribs mate up exactly with the centre section. It is much easier to do this on the board rather than offering up the wings to the centre section when it is built into the fuselage.
With the wings complete apart from covering you can now start the fuselage. Take your choice as to whether you use ply or balsa formers; the latter facilitate building, and are just as strong for the purpose, they also cut easier. Pin down the crutch and build the lower fuselage portion upside down on the plan..."
Quote - "January 1953 Aeromodeller... the BG44 is an A2 sailplane by Bora Gunic. Bora, from Yugoslavia, flew this design internationally with success and it was the culmination of a design philosophy going back a number of years. The only hindrance to this design turning in good times would be, I imagine, the skills of the flier. If you do decide to build from my plans please take care and measure carefully."
Supplementary file notes
Article page.
CAD file
This plan is available for download in CAD format.
Corrections?
Did we get something wrong with these details about this plan (especially the datafile)?
That happens sometimes. You can help us fix it.
Add a correction
-
(oz4333)
BG44
by Bora Gunic
from Aeromodeller
January 1953
66in span
Glider F/F
clean :)
all formers complete :)
got article :) -
Found online 05/05/2013 at:
http://www.rcgroups.com/forums/showpost.php?p=24902061...
Filesize: 262KB
Format: • PDFvector • CADfile
Credit*: hogal
Downloads: 3301
Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk
User comments
I build this model from the drawing in Aeromodeller back in the ... 'ies. On its maiden flight at +- 10m it flew away at walking pace without losing height and landed in the trees some 400 meters later. Apart from its looks I consider it to be an exceptional design and if properly built could still compete with current models.Anon - 06/09/2016
Add a comment
- BG44 (oz4333)
- Plan File Filesize: 262KB Filename: BG44_oz4333.pdf
- Supplement Filesize: 1601KB Filename: BG44_oz4333_article.pdf
- CAD Zip Filesize: 537KB Filename: BG44_oz4333_cad.zip
- help with downloads
Notes
* Credit field
The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.
Scaling
This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
Terms of Use
© Outerzone, 2011-2024.
All content is free to download for personal use.
For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.
Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.